 | | Quick Question...
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Howdy, Ordinarily this would be a question better suited for comp.sci.electronics...g-or-other but since the Handy Board expansion interface uses a 4051, I figured someone here could give me the answer more quickly... The official docs for the 4051 (...) (28 years ago, 5-Nov-96, to lugnet.robotics.handyboard)
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| | Buying a board.
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ok, I've been lurking on this group for like 2 or 3 years. I've just now finally gotten around to looking into actually buying a board. The only problem is that I don't have a lot of knowledge about robots at least the building end of it, I know (...) (28 years ago, 5-Nov-96, to lugnet.robotics.handyboard)
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| | Re: help on hbtest.c
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(...) See the HB assembly instructions, at (URL) (28 years ago, 5-Nov-96, to lugnet.robotics.handyboard)
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| | Re: help on hbtest.c
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Hi Steve, The file hbtest.c allows you to test the various features of the Handy Board and make sure they are operational. To use hbtest.c, type "load hbtest.c" at the IC prompt. When the file is finished loading, you will see the IC prompt again. (...) (28 years ago, 5-Nov-96, to lugnet.robotics.handyboard)
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| | Re: motors for the handy board
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(...) This is exactly what I wanted to do! Had I only the cash... (...) Are you driving each wheel with a separate motor or driving the front wheels with one 9v motor and the rear with another? (...) I have been fooling around with them since I was (...) (28 years ago, 4-Nov-96, to lugnet.robotics.handyboard)
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| | help on hbtest.c
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How would I use the program hbtest.c? I am new to using the HB. My class and I are entering the robot comp at Trinity this year and we are making huge progress but we need some help on programing the board. Any info would be great. We use Macs if (...) (28 years ago, 4-Nov-96, to lugnet.robotics.handyboard)
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| | Re: motors for the handy board
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(...) I had the same problem. I did many tests, and the last one was: I removed the 4x4 transmision, removed both forward and backward differential, and put a 9.6V motor with a VERY high torque. The results: the car started running, and in two or (...) (28 years ago, 4-Nov-96, to lugnet.robotics.handyboard)
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| | (no subject)
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Handy Board Users: I am building the first part of the HB: the charger/communication interface and I already got a problem: when I am testing the MAX232 and probing pad 3 of the SUBD connector when shorting together pins 6 and 10 of the MAX232, I (...) (28 years ago, 4-Nov-96, to lugnet.robotics.handyboard)
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| | motors for the handy board
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Handy Board Users: I took the LEGO Super Car (#8880) and scrapped everything but the four wheel drive with the differentials, the front and rear wheel steering, and the suspension. Then I shortened the frame sllightly so that the distance between (...) (28 years ago, 4-Nov-96, to lugnet.robotics.handyboard)
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| | Problems downloading
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Whenever I try to download a file (hbtest.c). It says that it downloaded sucessfully but when I move the knob nothing happens. Please help. Peter eacmen@postoffice.wo...et.att.net (28 years ago, 2-Nov-96, to lugnet.robotics.handyboard)
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| | Where is "set_digital_threshold()" in IC 3.18?
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Last year in my 6.270-style course the students used "set_digital_threshold()" which was in lib_r22.c. With the newer IC I can't find it. Is it there? ***...*** * Greg Starr, Professor and Graduate Advisor * * Department of Mechanical Engineering ph (...) (28 years ago, 30-Oct-96, to lugnet.robotics.handyboard)
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| | Re: Assembly language and the handyboard
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(...) Ed -- are you referring here to IC's mechanism for linking to assembly language files, the "IC Binary" interface? It's really not too hard to use, and allows users to create assembly language programs that are callable from IC using the C (...) (28 years ago, 27-Oct-96, to lugnet.robotics.handyboard)
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| | sim6811 v1.3 for Mac available
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Tomaso Paoletti has kindly sent me the latest version of his 6811 simulator, easily the best available for the Macintosh. It's available on cher in the projects/6811 directory, but cher is down right now, so you can get it from the HB home page: (...) (28 years ago, 26-Oct-96, to lugnet.robotics.handyboard)
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| | Batteries
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Hi, I once found a site that had documentation of an experiment conducted to test battery life (mainly common ones like AA,C,D,9V, etc.) of batteries by the different manufacturers. I couldn't find the site again. Has anyone seen this site? (...) (28 years ago, 26-Oct-96, to lugnet.robotics.handyboard)
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| | (no subject)
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Just wanted to let everyone know about an address change.. I have moved from <lylehaze@n-jcenter.com> to <amigaman@erinet.com> Anyone seeking help or info on the H-Bridge schematics I have in cher should seek me out at the new E-Address.. I wonder (...) (28 years ago, 26-Oct-96, to lugnet.robotics.handyboard)
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| | Re: Radio shack tape measure
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(...) I just got two units direct from Polaroid for $50 each plus shipping, but haven't seen anything for less. (28 years ago, 26-Oct-96, to lugnet.robotics.handyboard)
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| | 17 feet
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Well, I haven't looked at the sonar routines, but my guess is that 17 feet round trip at around 1ms / foot each way is close to 32.768 ms, which is when the 16 bit timer in the 6811 overflows (the 6811 clocks the 16-bit counter at 2 Mhz). One idea (...) (28 years ago, 26-Oct-96, to lugnet.robotics.handyboard)
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| | upper address byte, etc.
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Greetings all I'm currently working on what you might call an expansion board. I need to gain access to the upper address byte, A15-A8, the E clock, and the reset line, in addition to the data bus. just a couple questions. 1. I know i read (...) (28 years ago, 26-Oct-96, to lugnet.robotics.handyboard)
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| | polaroid sensors
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Ok, now that everyone has had plenty of time to play with their polaroid sensors, has anyone been able to measure distances of over about 17 feet using the sonar test routines on cher? After that distance, I just get measurements of 0'0"... :-( I (...) (28 years ago, 26-Oct-96, to lugnet.robotics.handyboard)
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| | re: Assembly Language on the HandyBoard
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(...) Ed- Two ways I am looking into: (a) Run a (freely available) shell called "PDE6811" on the PC, which includes an editor, assembler and simulator. Unfortunately, to download, PDE6811 expects that BUFFALO, Motorola's 6811 resident monitor be (...) (28 years ago, 25-Oct-96, to lugnet.robotics.handyboard)
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